Generate VerseEntity Subclasses using RNA API and Metaclasses

[jirihnidek]

It will be wise to use meta programming to create all subclasses of shareable Blender data. Python RNA API could be used for this purpose:

http://wiki.blender.org/index.php/Dev:2.5/Source/Python/PyRNA

[jirihnidek]

Other links:

• http://wiki.blender.org/index.php/Doc:2.6/Manual/Extensions/Python/Properties
• http://wiki.blender.org/index.php/Dev:2.5/Py/Scripts/Cookbook/Code_snippets/Properties